Very interesting. Tryed a fog cloner and thought the heat would be a problem so we kept temps at about 70 degrees. Results were very poor. Found out we needed 80 degrees or alittle better. So heat from the pond fogger was no issue in an A/C room. More like needed a fishtank heater.

Temps are important. I would also run the bubbler half the time just for alittle splash on the roots. Or to keep it moist in the root chamber.

What we found is if it's just fog all the time the roots become very lacy. If the fogger shuts down for even a hour those lacy roots dry and are damaged for good. If no roots have reach the water level then it's just about all over.

I like your setup, very well thought out and put together. Very interested to see how it does.